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Floods Caused by Tropical Systems: Raritan River Below Calco Dam at Bound Brook, NJ

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Floods Caused by Tropical Systems: Raritan River Below Calco Dam at Bound Brook, NJ Floods Caused by Tropical Systems: Raritan River below Calco Dam at Bound Brook, NJ Latitude: 40.475 Period of Record: 1882-Present Longitude: -74.548 Flood Stage: 28 Last Flood: 11/25/2018 Number of Floods: 71 Date of Flood Crest (ft) Streamflow (cfs) Weather Summary 8/28/1971 37.47 46,100 Tropical Storm Doria dumped 3 to 7 inches of rain across the region. Localized rainfall amounts of 8 to 10 inches were reported in the Tidewater area, Eastern NJ and Eastern PA. 9/24/1882 -9999 -9,999 A hurricane 10 days prior to this event produced up to 10" of rainfall. This hurricane destroyed 4 mills along the Rappahannock River. It dumped 11" of rainfall in Philadelphia. Most of the damage occurred in New Jersey were up to 18" of rain fell. 9/25/1975 29.09 23,900 The remnants of Hurricane Eloise combined with a cold front and produced very heavy rainfall in the Mid- Atlantic. Washington, D.C. reported 9.08" of rainfall. Total damage for Virginia was estimated to be $17.2 million. 6/23/1972 30.11 26,900 Hurricane Agnes made landfall again over southeastern New York on June 22 and moved westward into Pennsylvania. Rainfall totals from June 20-25 range from 2-3 inches in the Upper Potomac to 18 inches near Shamokin, Pennsylvania. 8/28/2011 41.9 80,400 Hurricane Irene brought heavy rains and flooding 26-28 August 2011. Area averaged rainfall from gauge and radar data indicated a broad swath of 3 to 10 inches with over 13” at a couple of spots. 10/9/2005 29.2 20,900 Tropical Storm Tammy was absorbed into a cold front and produced 2-day rainfall totals of 4 to 7 inches. Flooding was reported in the Raritan, Passaic, Delaware and Lower Main Stem Susquehanna Basins. 6/8/2013 29.14 20,600 A nearly stationary front interacted with the remnants of Tropical Storm Andrea and resulted heavy rainfall along the I-95 corridor. 9/7/2011 29.04 20,500 The remnants of tropical storm (TS) Lee moved up the Appalachian Mountains and interacted with a quasi- stationary east-west frontal boundary. 10 to 15 inches fell at numerous locations in Central PA and NY. 9/8/2011 33.14 33,900 The remnants of tropical storm (TS) Lee moved up the Appalachian Mountains and interacted with a quasi- stationary east-west frontal boundary. 10 to 15 inches fell at numerous locations in Central PA and NY. Drainage Area: 785 square miles Data represent all historical events. County of Gage: Somerset Gage Datum: 0 ft MSL Raritan Basin County of Forecast Point: Somerset Created on1/22/2020 at 1:03:45 PM Page 1 of 2 Date of Flood Crest (ft) Streamflow (cfs) Weather Summary 9/17/1999 42.13 82,900 Hurricane Floyd produced heavy rainfall from Virginia to Long Island. Rainfall totals ranged from 12 inches in Delaware to 16.57 inches in Newport News, Virginia. Two dams burst in New Jersey and several flood records were broken in New Jersey. 9/29/2004 28.79 19,900 Hurricane Jeanne stalled a cold front and supplied the front with much-needed moisture. As a result, 1-day rainfall totals ranged from 1 - 6 inches throughout the Mid-Atlantic region. Drainage Area: 785 square miles Data represent all historical events. County of Gage: Somerset Gage Datum: 0 ft MSL Raritan Basin County of Forecast Point: Somerset Created on1/22/2020 at 1:03:45 PM Page 2 of 2.
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